To indicate which method you're using to provide box content information, call CreateInboundShipment or UpdateInboundShipment and set the IntendedBoxContentsSource of the InboundShipmentHeader to one of the available options: NONE, FEED, or 2D_BARCODE. The default option is NONE. If the value of IntendedBoxContentSource is NONE at the time a shipment is confirmed, the manual processing fee will be assessed when the fulfilment centre receives your inventory.
If your shipping processes do not support providing box content information, you can choose to skip this step. You can skip this step without incurring fees. In 2020, Fulfilment by Amazon will introduce fees for manually processing your shipment for you.